Demographic transition models use what two population statistics to signify change in a nation’s population? 

race and birth rates 
geographic location and number of people below the poverty line 
education levels and income 
birth rates and death rates 

birth rates and death rates

Demographic transition models use birth rates and death rates to signify changes in a nation's population. These models analyze how these rates change over time and how they affect a country's population growth or decline. By examining birth and death rates, demographers can identify different stages of population transition, which can help policymakers understand population trends and make informed decisions regarding healthcare, education, and social services.

Demographic transition models use birth rates and death rates to signify change in a nation's population. These models analyze how these two statistics change over time to understand the growth, stability, and decline of populations.